After more than a year of politicized science and amid a wave of vaccine hesitancy, the long war against Covid-19 stands at a critical stage.
원문출처 : https://www.cnn.com/2021/05/12/health/history-pandemics-eradication-elimination/index.html
원문출처 : https://www.cnn.com/2021/05/12/health/history-pandemics-eradication-elimination/index.html